Abstract

Optimally moistened soil has the best looseness, lower hardness and resistivity, it is less sprayed during processing and by the wind. However, these properties can be preserved during long-term irrigation only by observing a number of conditions: using a set of agrotechnical practices in crop rotation, appropriate irrigation methods and techniques, and strictly standardized supply of irrigation water. A distorted irrigation regime negatively affects the physical properties of the soil: density increases, porosity and water permeability decrease, structure deteriorates, and irrigation erosion develops